<div class="btn-group">
  <a href="{Url('index/cache/set')}" class="btn btn-default">设置演示</a>
  <a href="{Url('index/cache/get')}" target="__blank" class="btn btn-default">获取值演示</a>
  <a href="{Url('index/cache/delete')}" class="btn btn-default">删除值演示</a>
  <a href="{Url('index/cache/clean')}" class="btn btn-default">清空演示</a>
</div>